package yby.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class JdbcUtils {
    public static int update(String sql)throws Exception{
        Class.forName("com.mysql.jdbc.Driver");
        String url="jdbc:mysql://localhost:3306/test?useSSL=false";
        String username="root";
        String password="root";
        Connection connection= DriverManager.getConnection(url,username,password);
        Statement statement=connection.createStatement();
        return statement.executeUpdate(sql);
    }

    public static void select(String sql)throws Exception{
        Class.forName("com.mysql.jdbc.Driver");
        String url="jdbc:mysql://localhost:3306/test?useSSL=false";
        String username="root";
        String password="root";
        Connection connection= DriverManager.getConnection(url,username,password);
        Statement statement=connection.createStatement();
        ResultSet set=statement.executeQuery(sql);
        while(set.next()){
            String c=set.getString(1);
            System.out.println("c="+c);
        }

    }
}
